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PSIX

Power Solutions International

201 hedge funds and large institutions have $419M invested in Power Solutions International in 2026 Q1 according to their latest regulatory filings, with 55 funds opening new positions, 64 increasing their positions, 50 reducing their positions, and 43 closing their positions.

New
Increased
Maintained
Reduced
Closed

81% more call options, than puts

Call options by funds: $21.5M | Put options by funds: $11.9M

28% more repeat investments, than reductions

Existing positions increased: 64 | Existing positions reduced: 50

28% more first-time investments, than exits

New positions opened: 55 | Existing positions closed: 43

7% more capital invested

Capital invested by funds: $393M → $419M (+$26M)

4% more funds holding

Funds holding: 193201 (+8)

0% more ownership

Funds ownership: 29.71%29.72% (+0%)

Holders
201
Holders Change
+8
Holders Change %
+4.15%
% of All Funds
2.47%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
% of All Funds
0.02%
New
55
Increased
64
Reduced
50
Closed
43
Calls
$21.5M
Puts
$11.9M
Net Calls
+$9.58M
Net Calls Change
+$8.26M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$43.6M +$2.99M +41,946 +6%
Arrowstreet Capital
2
Arrowstreet Capital
Massachusetts
$28.4M +$1.65M +23,108 +5%
SA
3
Situational Awareness
California
$26.3M
VCM
4
Vanguard Capital Management
Pennsylvania
$20.8M +$24.3M +340,974 New
Allspring Global Investments
5
Allspring Global Investments
North Carolina
$19.9M -$1.97M -27,593 -8%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$17.2M +$5.8M +81,350 +40%
Barclays
7
Barclays
United Kingdom
$14.6M +$15.1M +212,172 +790%
BB
8
Busey Bank
Illinois
$13.4M
SG Americas Securities
9
SG Americas Securities
New York
$13.2M +$15.3M +214,612 +12,037%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$12M +$330K +4,626 +2%
State Street
11
State Street
Massachusetts
$10.4M +$418K +5,852 +4%
Morgan Stanley
12
Morgan Stanley
New York
$10.2M -$551K -7,717 -4%
LPL Financial
13
LPL Financial
California
$9.51M +$4.97M +69,604 +80%
DB
14
Danske Bank
Denmark
$7.41M +$8.68M +121,653 New
NA
15
Navellier & Associates
Nevada
$6.54M +$412K +5,773 +6%
VPM
16
Vanguard Portfolio Management
Pennsylvania
$6.41M +$7.51M +105,229 New
HVCM
17
Hel Ved Capital Management
Hong Kong
$6.14M -$517K -7,250 -7%
Millennium Management
18
Millennium Management
New York
$5.96M +$230K +3,222 +3%
Man Group
19
Man Group
United Kingdom
$5.4M +$4.41M +61,778 +230%
First Trust Advisors
20
First Trust Advisors
Illinois
$5.24M +$360K +5,049 +6%
Northern Trust
21
Northern Trust
Illinois
$4.88M +$123K +1,724 +2%
OGM
22
OnyxPoint Global Management
New York
$4.74M +$5.56M +77,919 New
Charles Schwab
23
Charles Schwab
California
$4.55M -$18.8K -263 -0.4%
Voloridge Investment Management
24
Voloridge Investment Management
Florida
$4.42M +$5.18M +72,630 New
VCM
25
Valiant Capital Management
California
$4.22M +$2.07M +28,987 +72%

PSIX Hedge Fund Activity: Q1 2026 in Review

201 of the 8,125 institutional investors tracked by Wall St. Rank reported a position in Power Solutions International (PSIX) for Q1 2026, worth a combined $419M — up 6.6% from $393M a quarter earlier.

Buyers outnumbered sellers: 55 funds opened new PSIX positions and 43 closed out — a net gain of 12 holders — while 64 added to existing stakes and 50 trimmed.

The largest buyer was SG Americas Securities, adding an estimated $15.3M. The largest seller was Driehaus Capital Management, exiting entirely with an estimated $13.1M sold.

  • 201 institutional investors held Power Solutions International (PSIX) as of Q1 2026, up from 193 in Q4 2025.
  • Funds reported $419M of Power Solutions International stock for Q1 2026, up 6.6% quarter-over-quarter.
  • 55 funds opened new Power Solutions International positions in Q1 2026 and 43 closed out, a net change of +12 holders.
  • The largest Power Solutions International buyer in Q1 2026 was SG Americas Securities, an estimated $15.3M added.
  • The largest Power Solutions International seller in Q1 2026 was Driehaus Capital Management, an estimated $13.1M sold.

Based on aggregated 13F filings for Q1 2026.